Yarn-impinging



Dec. 22,1925- 1,566,707

. w. H. wAKEFlELD YARN IMPINGING, I 'AY ACTUATED,y BOX CONTROLLED WEPT DETECTOR Filed 'March 6, 1925 2 Sheets-Sheet 1 Dec. z2,1925. 1,566,707

W. H. WAKEFIELD YARN IMPINGING, LAY ACTUATED, BOX CONTROLLED WEFT DETECTOR Filed March 6,' 1925 2 Sheets-Sheet 2 J7 58 y V 36 .v e 1 f6 B Zia oevzcr:

" ing at Worcestenin the countyv of'Worcese Patented Dec. 22, 192,5.

,.,MnssAcHUsnTTs e xNowLEsLOOM WORKS 0F WORCESTER, 'MASSACHUSETTSAA CORPQATIQNOF Appn'ation; md Maren e, 1925. se'rialfNo'. 113,585.

FmLn, a 'citizen of the United States; resid'- terj and State of Massachusetts, `have invent- 'eda new andl useful Yarn-Impinging, Lay-- Actuated, *Box-Controlled: Weit Y Detector, ,0f which the following is a specification;l l This invention relates to improvements in 'weftdetectors for box looms andmore particularly'v to. they type of" detectorhaving a yarn'impinging member and a second lay actuatedmember under control of the boxmoltion. In my co'pending application, Serial No.-A758,9O5,' there is shown a detectorofthis f vention to provide means forvarying' the set forth in the claims.

adjustmentof the lay actuated portion of the detector so that the detector can be renderedv equally-eicient for all combinations fof sizes of yarn. e a 1 V It isa further object of my invention to provide fan adjustment which can be setin such position as to permit the use ofthe same character of yarn in all the shuttles of V'the loom even though the `lay actuated part be controlled by the box motion and moved in time with the active shuttle.

Vith these and other objects in view which -will vappear as the description proceeds, my inventionresides in the c ombinationandarrangement ofv parts hereinafter described and In the accompanying drawings wherein Ifhave `shownia preferred form ofmyvinvention, v

1 isy a front elevationy ofl a portion of loom havingmy invention applied thereto,

'the'c'entral portion of the loom being broken f away i. f Fig.` 2 is a top plan view, partly in section, of the detector, l L 1 y 4PF l 'WAIQTEH WAxErIELD, 0F Wononsrnn, nhssacnsnrrfsfssrenonITo "cnoivfrroiv .l line .ses @migra f I .i Fig. 4i isl an enlarged f 'verticalvsection lon Fig; 5 is anenlarged .sectionl on i v'of Fig. lishovving thefcontrol Vmember' as it would .be us'edfforjE yarns .of .varying diameters, and'. d

Fig. 6'isva view ysimilar to. 5 but show- 1v-' i ingfthecontro'l member 'set' to detect yarns lall:ofwhich'arethesaine size. 'In carrying outmy inventionI provide a control c am securedgto the boxes Aat one :end of the layand an. eccentricrroll mounted on the. other end 4'of the lay and operativelyand adjustablyfconnectedto the cam inisuch a way: as to be moved to various positions as 'the boxes move. Referring more particulary tothe drawings it will be seen that I 7 have lprovided a loom frame 10Lhaving a lay 11 mounted on swords 12 whichswing about rocker shaft 13. :The left hand end of the lay` i's provided with upper and lower boxes 14 and 15, respectively,which are'connected by a box Alifter rod 1 6 raised andloweredin any approved manner 'by mechanism not shown. v.

v-Secured to the inner `forward end of the boxes -is a'cam plate fl-'liaving upper and 'lower feet 18 and 19, respectively,-which vare secured tothe framefof theiboxesjas in- .I dicated in Fig. 4; 'Thevertical part ofsaid `plate is provided with a cam slot 20 which receives a study 21v secured to the upper'en'd l' 4of av lever'22.r VSaid lever 22 is pivotally mounted on a stand 23'secured to the lay 11 and has thelower end thereof 'connected to a link 24 which extends across uthe loom.

The uPPerPO'tOn of theslot;20` is oifset'll" from the lowerportionand when the boxes are raised or lowered the stud v21 will be moved toward orfrom ythe centerof the loom to give acorresponding movementtothe.

connector 24.-

.'Ihe opposite endfof the'layis provided with a 'stand 2 5 'on which is pvotally mounted abell crank: lever 26onev end of which is connected to' said: link 24 andthe other end ofwhichis connected to a rod 27 extending upwardly and connected to anarm 28 having a hub 29. l "Bearings 30'.. are; fixed to vthe lay 'as'indicated in Figs. 3 and Areceive the f .gudgeonsSliof'aneecentric 32.` AIn order to,

' The detector employed in connection withf my invention is shown more particularly iny Figs. 2 and 3 and comprises a stand 35 having an upstanding lhorn 36V through which projects a controller pin`37fpivotallyk connected at the forwardend thereof to an arm 38.v Said arm' is secured at the lower end thereof to a shaft 40 supported in bearings 41 and 42 respectively, projectingfforwardlyy from thev standv ,35i A .second arm 43 is also secured at the lower end thereof to therod 40 andhas theupperend thereof fin pressing engagement with a rod 44. Said 'l 1rod4'4 extends through ajslidin'g case 45 and is held against/offset arm 46 of the detector 47 Vwhich ispivotally mounted-to the slide 45 at 48 by a coiled `spring 49v Vone end of whichA is received byl theV bearing 42 and the other end ofwhich is received by. a vcollar 50 adjustably secured to shaftV 40. AV sec-ond rod 51y is carried by,v the slide 45 and'hasf the rear end thereofhooked .as'at 52,'to 4extend arcundthe rear end ofv sai-d l arm 46. Said rod 5l has a head 353 which receives 4al set, screw 54 to engage thezbed 551 in which the slide 45 moves.

Upstanding from saidslide 45 .1s a clip l56 through which pass-es a stud 57 and against lv'vrhichfpresses al spring' 58 interposed betweensaid clipand the cap 59 secured to the bed v55.Y Depending from the slide 45 isv an actuable member comprising an arm 60 in which is adjustably secured va screw 61V k:having a head` 62 positioned for engage- Vment witht-he eccentric 32.l

In operation the s ring 58'l1olds the slide y 45 and partsmounte thereon to the rear and `spring 49 holds the controllerpin 37 under der action of spring 49.

.an actuator 63. e As the lay'beats up on a detecting pick the yarn on bobbin B will engage the detector 47 and prevent the same from turning about the axis 48 thereof un- Y This results in aforward movement of the slide 45 which will carry the head 62 of the bolt 61 forward so that it will not be engaged by the eccentric 32. VVVhen-theyarn onV the active shuttle has become sufficiently depleted to render replenishment desirable the eccentric 32 will engage the head 62 before the yarn engages dectector 47 and the latter will be free to swing on its pivot 48 under action of spring 49 as the slide 45 moves forwardly. lW'hen this occurs the controller pin 47V will remain lunder actuator 63 and as the latter descends an indication vof weft exhaustion a will be given as set forth in Patent No. 1,030,748.

In looms wherea very fine yarnV is laid by certain shuttles anda 'relativelyfcourse yarn is laid by other shuttles it is desirable that the detector be adjusted so vas-to' *leave a smaller thickness of fine yarn and a relatively larger thickness of coarse yarn .at the time of indication.

y This result is accom-A plishedv by the mechanism between the boxes and the eccentric the shifting of the boxes altering the vposition of Y the eccentric Y so. that there is more or less horizontal distance betweenkthe head 62 and the detector 47, de'- Vpending, upon whether coarse or fine yarn Yis active.l With the constructionzshown here;

.in it spossible to vary the range of sensitiveness of the detector. .y Thisadju'stment is accomplissed'by varyingithe position of the eccentric 32 by means of set screw 34V this `adjustment permitting the detecter to be used with yarns yarns all the same size. Y 1

Fig. 5 shows kthe position the eccentric assumes when the, detector is cooperating,k

with yarns of varying sizes. The fullnlinefs show th-e setting whichthe eccentric will as.v sume when cooperating with` Vfine lyarn and the dotted .lines show the position for coarse of" varying sizes r0r` yarn. It is desirable that a loonrprovided n with the mechanism shown in Fig. 4 be capable of use Vwith shuttles all of' which may carry yarn of substantialy the same size,

1 in whichcase the eccentric- 32 will be ad- Fig., 6 wherein the `full p justed asv shown in linesshow the position ofthe eccentric for one y. setting of vthe lever 22 andthe dotted line position shows the setting of the eccentric for the other Yposition of said lever. vIt will be noted that the horizontal distance .between the axis ofv theeccentric and that portion of the eccentric which engageshead 62 is the same for both settings.l Thus the detector can remain on the loomy whilebeing used as a detector of the usual type.

y.From the foregoing it willvbeV 'seen that I have provided a detector for usefwith a loom having a plurality of boxes for accommodating relatively `fine and relatively coarse yarn and that said detector has a variable range of sensitiveness. Also,said detector may be set so asto cooperate with a plurality of shuttles all of whichV carry yarn of practically the same size.

I-Iaving thus tions may be made therein by those in the art without departing from the 'spirit and scope of the'invention,and I do not I described my' invention it ywill be apparent that changes and modiiicakskilled wish to be limited to the details herein dis-kl A closed but what I claim isz' y y 1. In a detector for looms having a plurality of shifting shuttle boxes to accommodate a plurality of shuttles any one of which may become active, a lay, a yarn impinging member to cooperate with the active shuttle, a lay actuated element operatively connected` With the yarn impinging member, a second element mounted on the lay and positioned for operative contact with the first named element, one of said elements being movable intime with the active shuttle to vary the time of contact with the other element as the Ylay advances, and means independent of the .boxes to adjust the setting of one of said 3. In a detector for looms having a plu-v rality of shifting shuttle boxes to accommodate a plurality of shuttles any one of Which may become active, a yarn impinging member to cooperate With the active shuttle, a lay actuated member operatively connected to the yarn impinging member, an eccentric mounted on the lay and operatively positioned Withrespect to the lay actuated member, means connecting the boxes and eccentric to move the eccentric in timed relation ,with the active shuttle, and additional' means to adjust the position of the eccentric With respect to the lay actuated member.'

' 4. In a weft detector for looms having a plurality of shuttle boxes, a yarn impinging member to co-act with the yarn in each shuttle when active, a lay actuated member operatively connected to said yarn impinging member, said lay actuated member including an eccentric, means operatively connecting the eccentric with the shuttle boxes, and

additional means to vary the setting of the' eccentric with respect to the lay actuated Vmember.

5. In a weft detector Vfor looms Ahaving a plurality of boxes to accommodate a plurality of shuttles any one of which may become active, a lay, a yarn-impinging memberl i to .cooperate with the yarn of the active shuttle, a lay actuated member comprising a `pair of elements, one of said elements being operatively connected to the yarn impinging member andthe other element being mounted on the lay or'operative contact With the other element, one of said elements being angularly movable with respect i to the other element under control of the boxes to vary the time of contact between the elements as the lay advances, and means independent of the boxes and-active shuttle to vary the points of contact between said elements.

In testimony whereof I have hereunto affixed my signature.` i

WALTER H.. WAKEFIELD. 

